In Sikhism, the highest spiritual realm described in the Japji Sahib is Sach Khand.
Sach Khand means “Realm of Truth” and appears in the final section of Guru Nanak’s poetic account of spiritual development. The passage presents the seeker’s progress through five realms, or khands: Dharam Khand, Gian Khand, Saram Khand, Karam Khand, and Sach Khand.
The final realm is associated with complete awareness of divine order and closeness to Waheguru. Sikh teaching generally emphasizes union with the divine and liberation from ego rather than a physical paradise located in a particular place. This makes Sach Khand different from many popular images of heaven.
The five khands are often interpreted as stages of spiritual realization, although Sikh commentators can explain their imagery in different ways. Sach Khand should not be confused with Anand Khand, the realm of bliss, which is named earlier in the sequence in some modern explanatory treatments.