Existence: we see the world through existence. A dead cat is simply a dead cat and a lump of flesh, for that matter. Add Existence, and it begins to move, meow ...jump ...
Without this, there is only vacancy; void .. I would not read this, and you would not ask this question, as I would be non-existent, right?
Love: Each Soul is a seeker. We feel that there is something missing, and so we search for it in alcohol, drugs, women or men, family life, fast cars, career ... we will still seek in a so called perfect marriage, even to the point of death. The Soul cannot stop seeking.
We are in isolation from Love and consciously or unconsciously, we are trying to re-awaken or discover this. The same one goal but through different channels.
Service: After we have found our Goal, we come to realise that the full extent of Love, lies in a selfless sharing of that Love. The Messiah or Boddhisatva approach.
Prayer/Meditation. The tool or tools that helps along the way to re-discover our lost Kingdom.
Sooner or later we arrive at the essential needs: air, water, fire ... then we arrive at the self-esteem needs, some of which we call 'love' with a small 'l.'. Loving thoughts.