For what can be known about God is plain.--Romans 1:19
It is interesting when we reflect over our lives. Many times our human nature functions as if we're alone. The human aspects of our lives tend to lean toward singleness as if there is no other automatic source aiding us. We invite others to help us throughout our journey, but if you haven't already figured out that, even without another human being by your side there is "one" inside waiting on you to invite Him to become active in your life.
“If you love me, keep my commands. And I will ask the Father, and he will give you another advocate to help you and be with you forever— the Spirit of truth. The world cannot accept him, because it neither sees him nor knows him. But you know him, for he lives with you and will be in you. I will not leave you as orphans; I will come to you. -- John 14:15-18
The thought of never being alone is very comforting and over time my faith has increased in the dependency of the Holy Spirit guiding me in this earthly body. The scripture speaks of the world not accepting Him because they can't see Him or know Him.
For those that feel alone, my suggestion is to develop a strong desire to not walk after the ways of the flesh that seek first physical evidence, but after the ways of the spirit man that depend on faith in God.
"Faith is the confidence that what we hope for will actually happen; it gives us assurance about things we cannot see." --Hebrews 11:1
The Holy Spirit is our leader and co-partner in this journey and the more we become in tune to His presence the easier it will become to know God plainly and walk in God's plan for our lives.
"For I know the plans I have for you,” declares the LORD, “plans to prosper you and not to harm you, plans to give you hope and a future." -- Jeremiah 29:11