In SGGS Ji it says that without the sadh sangat you will not be satisfied.
Also:
Intuitive understanding, wisdom, cleverness, glory, beauty, pleasure, wealth and honor, all comforts, bliss, happiness, and salvation, O Nanak, appear by chanting the Name of God (Guru Granth Sahib Ji, 1323).
Kabeer says, you remember God in meditation only when the need arises. You should remember Him all the time. You shall dwell in the city of immortals, and the Lord shall restore the happiness you lost (Guru Granth Sahib Ji, 1373).