Jesus says He has sent the Spirit of truth to us to be our Advocate. He will abide with us and in us. We were designed to need an Advocate. We cannot keep His commandments without help nor can we truly love Him without experiencing His presence. The Spirit leads us to love Him and consequently we will keep His commandments.
Jesus promises to not leave us orphaned. We are not meant to be on our own. Instead, His presence in us will guide us every day. We are compelled by His love for us and others will see Him because of our love for Him and everyone else.