Randip ji
This is not Gurmat, but addresses your point.
Water which is too pure has no fish.Reference:: Sikh Philosophy Network http://www.sikhphilosophy.net/gurmat-vichaar/18405-goal-of-human-life.html
Ts'ai Ken T'an
We remember that the Sikh understanding of dharma, karma and re-incarnation does not despise the real world, person, events. Vanishing into nothingness contradicts our understanding that God is also an Immanent God in the world which is His Creation.
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ਜੇ ਕੋ ਮੂੰ ਉਪਦੇਸੁ ਕਰਤੁ ਹੈ ਤਾ ਵਣਿ ਤ੍ਰਿਣਿ ਰਤੜਾ ਨਾਰਾਇਣਾ ॥
jae ko moon oupadhaes karath hai thaa van thrin ratharraa naaraaeinaa ||
If someone is going to teach me something, let that be that the Lord is pervading the forests and fields.