A stands for action. When this energy of passion/joy/excitement is felt, act on it. Take a step towards it, no matter how small and the momentum will build.
T stands for trust. Trust that you will be guided as long as you choose to hear/feel the energetic message from your Higher Self and not let your ego mind instill fearful thoughts and limitations that pull you back.
S stands for synchronicity. Synchronistic events will begin to happen as you tape into your passion. Things will begin to flow and your path becomes clearer. Continue to follow it until a new, stronger passion arises and is preferred.
As you are true to your passion, the energy that you feed into it and radiate outwards brings joy, peace, inspiration, excitement, and contentment not only to yourself but to others that cross your path. This shared energy helps raise the vibration of others, giving them more clarity and desire to tap into their own unique path.
Pursuing your passion is not a selfish thing. It is who you are. When you are more of who you are, you realize your value, your worth, life has more meaning and you inspire others to do the same. The spirit of love, compassion, unity, and cooperation arises. When you are being truly authentic and doing your thing, the fear of competition and separation is pushed aside and a beautiful tapestry of harmony, community-mindedness and the sharing of one's bounty and talents flourishes.