I have noticed that these wanderers do not reside in their houses. For the sake of Allah they wander hither and thither exposing themselves to extremes of weather all the time weeping and remembering Allah. All such wanderers, who are totally absorbed in acquiring the spiritual knowledge, pass their lives in sadness (arising out of non-completion of their programme).
Note: The Nakshbandis like other spiritualists, emulate the instance of the Prophet and at a particular stage of life, take to prayer and meditation away from their abode.

I saw such Khhahoris, who live not in houses,
For the Only One, in cold outside they shedding tears remain.

I saw Khhahoris, who stay not at home,
Bearing cold winds they shed tears for their Lord,
Dothis found Duth when they under went suffering.