All in God’s True Calling

When the Lord gives us a specific calling, or mission that He wants us to accomplish, how do we know it, and how do we know when it is complete? Have you ever left spiritual business unfinished because you took your eyes off of the Lord? Whether it is praying for someone each day, being a loving spouse, serving in a far off land, or simply mowing the yard of a sick neighbor; when does God call us, and when does removing us from that call become His desire? Do we hear God calling us to something different or is what we are feeling the result of our own lack of determination, or dedication?