According to Osho, effort is needed because liberation is not annihilation but expansion: when the drop dissolves, it becomes the ocean, and the ocean enters the drop. The 'I' is a knot of misery; to lose it is to uncover bliss (Sat-Chit-Ananda). Practice dismantles the false identity now, so God-consciousness can experience through you—vastness here, not a theoretical dissolution after death.
Let go of the pretend ‘me’ so you can feel the joy and bigness of the whole ocean while alive, not wait for death.