This means, ‘Let go’, ‘stop striving’. When we push & struggle for something to happen we are not ‘resting’ in God doing it.
Include God in the working out of your goals. Listen to Him. ‘KNOW’ what He is doing and align yourself with His direction, pace and timing.
It may take longer and be a different way than you would do it, but trust Him. You can’t build a spiritual Kingdom with the strength of your flesh. This is why people ‘burn out’ get stressed & struggle.
RELAX – AND LET GO AND LET GOD.