Satlok (सतलोक) / Satyalok (सत्यलोक) / Sachkhand (सचखण्ड) Punjabi ਸਚ੍ਖੰਡ / Eternal Place (शासवत स्थान) Rit Dhaam (रितधाम)
Satlok is an eternal place which never gets destroyed. In Shrimad Bhagavad Gita, Adhyay (Chapter) 18, Shlok (verse) 62 this Satlok has been addressed as "Shasvat Sthaan (शासवत स्थान)" or "Snatan Param Dhaam (सनातन परम धाम)". On reaching there a human never comes back in to the cycle of birth and death.
There is not even a trace of peace and comfort in this Kaal Brahm’s lok. The vices of lust, anger, greed, affection, arrogance, love-hatred, joy-sorrow, profit-loss, pride-honour, born from Trigunmayi Maya, are troubling every living being. Here one living being kills and eats another living being, exploits, deprives one of honour, robs wealth and snatches away peace. Here there is fire blazing everywhere. Even if you want to live in peace, others will not let you live. Even when you do not want, a thief commits a theft, a robber commits robbery, an accident takes place, the crop of a farmer gets destroyed, the business of a business man collapses, the kingdom of a king is taken away, a healthy body gets affected by a disease; in other words, there is nothing safe here. The kingdoms of the kings, the honour of the respected, the wealth of the wealthy, the strength of the powerful, and even our bodies are suddenly snatched away. Young sons and daughters die in front of the parents, parents die leaving their breast-feeding children crying and sobbing, young sisters become widows and we are compelled to bear the mountains of sorrows. Just think that is this place worthy of living in? But we are helplessly living here because we do not see any way to get out of this cage of Kaal, and we have become used to causing grief to others and of suffering grief. Because we have forgotten our real home. That supreme peace and happiness, instead of being here, is present in our real home Satlok, where there is no birth, no death, no old age, no sorrows, no unrest, no disease, no give and take of money, do not have to pay any electricity bill, nor have to buy any means of entertainment. There everything is provided free of- cost by God and is indestructible. There is evidence in the speech of Bandichhor Garibdas Ji Maharaj that —
बिन ही मुख सारंग राग सुन, बिन ही तंती तार। बिना सुर अलगोजे बजैं, नगर नांच घुमार।।
घण्टा बाजै ताल नग, मंजीरे डफ झांझ। मूरली मधूर सुहावनी, निसबासर और सांझ।।
बीन बिहंगम बाजहिं, तरक तम्बूरे तीर। राग खण्ड नहीं होत है, बंध्या रहत समीर।।
तरक नहीं तोरा नहीं, नांही कशीस कबाब। अमृत प्याले मध पीवैं, ज्यों भाटी चवैं शराब।।
मतवाले मस्तानपुर, गली-2 गुलजार। संख शराबी फिरत हैं, चलो तास बजार।।
संख-संख पत्नी नाचैं, गावैं शब्द सुभान। चंद्र बदन सूरजमुखी, नांही मान गुमान।।
संख हिंडोले नूर नग, झूलैं संत हजूर। तख्त धनी के पास कर, ऐसा मुलक जहूर।।
नदी नाव नाले बगैं, छूटैं फुहारे सुन्न। भरे होद सरवर सदा, नहीं पाप नहीं पुण्य।।
ना कोई भिक्षुक दान दे, ना कोई हार व्यवहार। ना कोई जन्मे मरे, ऐसा देश हमार।।
जहां संखों लहर मेहर की उपजैं, कहर जहां नहीं कोई। दासगरीब अचल अविनाशी, सुख का सागर सोई।।
In Satlok, there is constant supreme peace and happiness. Until we go to Satlok, we cannot attain supreme peace, happiness and immortality. It is only possible to go to Satlok if we take updesh (initiation/spiritual instruction) from a Purna Saint (Complete Saint) and keep doing bhakti of Purna Parmatma (Supreme God) throughout our life.
The only means by which one can go to Satlok or Sachkhand is via a True Guru, or a complete saint or "Satguru" who then gives you the 'shabad' or 'naam' or 'satnaam'. This is what Guru Nanak Dev Ji is referring to in His Bani in Guru Granth Sahib. Without a True Guru one continues to wander in the labyrinth of 84 lakh life forms.
Bani from Shri Guru Granth Sahib Ji
ਬਿਨੁ ਸਤਿਗੁਰ ਨਾਉ ਨ ਪਾਈਐ ਬਿਨੁ ਨਾਵੈ ਕਿਆ ਸੁਆਉ ॥(Page 58, Line 3)
Without the True Guru, the Name is not obtained. Without the Name, what is the use of it all?
ਨਦਰਿ ਕਰਹਿ ਜੇ ਆਪਣੀ ਤਾ ਨਦਰੀ ਸਤਿਗੁਰੁ ਪਾਇਆ ॥ ਏਹੁ ਜੀਉ ਬਹੁਤੇ ਜਨਮ ਭਰੰਮਿਆ ਤਾ ਸਤਿਗੁਰਿ ਸਬਦੁ ਸੁਣਾਇਆ ॥
ਸਤਿਗੁਰ ਜੇਵਡੁ ਦਾਤਾ ਕੋ ਨਹੀ ਸਭਿ ਸੁਣਿਅਹੁ ਲੋਕ ਸਬਾਇਆ ॥
ਸਤਿਗੁਰਿ ਮਿਲਿਐ ਸਚੁ ਪਾਇਆ ਜਿਨ੍ਹ੍ਹੀ ਵਿਚਹੁ ਆਪੁ ਗਵਾਇਆ ॥ ਜਿਨਿ ਸਚੋ ਸਚੁ ਬੁਝਾਇਆ ॥੪॥ (Page 465, Line 2-4)
If the Merciful Lord shows His Mercy, then the True Guru is found. This soul wandered through countless incarnations, until the True Guru instructed it in the Word of the Shabad. There is no giver as great as the True Guru; hear this, all you people. Meeting the True Guru, the True Lord is found; He removes self-conceit from within, and instructs us in the Truth of Truths. ||4||
ਬਿਨੁ ਸਤਿਗੁਰ ਭੇਟੇ ਮੁਕਤਿ ਨ ਕੋਈ ॥ ਬਿਨੁ ਸਤਿਗੁਰ ਭੇਟੇ ਨਾਮੁ ਪਾਇਆ ਨ ਜਾਇ ॥(Page 946, Line 8)
without meeting the True Guru, no one is liberated. Without meeting the True Guru, the Naam cannot be found.
ਸਤਿਗੁਰ ਤੇ ਭਉ ਊਪਜੈ ਪਾਈਐ ਮੋਖ ਦੁਆਰ ॥(Page 1288, Line 9)
Through the True Guru, the Fear of God wells up, and the Door of Salvation is found.