Synergy is when the sum is more than the individual parts, as if 2 + 2 adds up to 6.
I can't tell you how to achieve synergy. But I am going to suggest that you look for it and nurture it when you find it. The most common occurrence of synergy is in good relationships. It will seem as if more lucky occurrences happen when you are in the company of this particular friend or loved one. If you go along the beach hunting for shells, prettier shells will be there when you are with this person. Perhaps it is a matter of having your perceptions heightened by the sense of well being you have when you are around this person. I suggest that you do all you can to be around good people, good places, good events, good ideas. These things will benefit you by themselves. But they are also apt to put you on a higher plane, one where synergy can kick in. When you discover this enjoy and nurture it. We deserve all the help we can get. When the universe, or whatever higher power you look to, sends you a little extra that is evidence of the magic that surrounds you. Hook into it and enjoy your life. May the spark be with you.