A deficiency or a feeling of lack results from a lack of connection with our Saviour, Jesus Christ. Jesus has promised to give us all things (2 Cor 9:8). We do not lack anything.
David knew this….
“The Lord is my shepherd; I lack nothing.” Psalm 23:1
Can you say the Lord is your shepherd, the one who leads, guides, and cares for you? If so, this feeling of something missing will disappear. He is your all and all and the one who satisfies you.
“The Lord will guide you continually, And satisfy your soul in drought, And strengthen your bones; You shall be like a watered garden, And like a spring of water, whose waters do not fail.” Isaiah 58:11 NKJV