The heart does not derive pure pleasure from what is impermanent.
Worry is itself an illness, since worry is an accusation against Divine Wisdom, a criticism of Divine Mercy.
Do what you do only for God's sake, start for God's sake, work for God's sake, and act within the sphere of God's good approval.
Life is a manifestation of unity.
A thing's innate disposition does not lie.
If you want an enemy, the soul (nafs) is sufficient. If you want advice, death is sufficient.