The ancient Celts made beautiful knotwork art to express their religious beliefs that all things are connected. What does connectedness mean to you?

Celtic knotwork is an old tradition, appearing in history sometime after about 450 AD; but our understanding of the Celtic knots’ meaning amounts to educated guesses on the part of historians, mythographers, and archaeologists, because there is little written history documenting their purpose.
However, patterns of their appearance through history alongside other cultural elements in graves, churches, groves, and carven in dolmens and menhirs give us insight, and allow us to infer some basic information relating to the Celtic knots’ meaning.
The Celtic knot symbol is also referred to as the mystic knot, or the endless knot. This sometimes alludes to beginnings and endings, such as births, deaths, threshold states between childhood, maturity, and old age; dream, death, and waking. In the knots, one cannot see a beginning or an end. In this we are reminded of the deep time nature of our spirit, memory, and the collective past life of all animals, humans, and plants.
Due to it’s infinite path, the Celtic knot can represent an uninterrupted life cycle. Some may use this symbol as a charm of sorts – warding against sickness or setbacks that might interfere with an otherwise calm and stable life. In this vein, these knots are used as emblems, which can be found in jewelry, clothing, or home décor. In ancient times, gifts adorned with mystic knots would be given with best wishes of longevity, or luck with new endeavors.
The Celtic Trinity Knot or the Triquetra, is one of the most often seen knots. The term Triquetra derives from Latin, and it means “three-cornered.” There are many schools of thought when discussing the Celtic trinity knot meaning
The meanings of this tripartite sum are as numerous as the religions that have lived on Gaelic soil: Father, Son and Holy Spirit; Mother, Crone, and Maiden; The Norns of Past, Present, and Future.
This vast number of interpretations reminds us that the meanings of these peculiar and beautiful knots are not set in stone. The mystery is part of the fun, and in my opinion, part of the meaning. Every culture gives something to the world, and the offerings of Gaelic culture seem to always partake of the nature of riddles, perhaps because in wondering the mind finds more wisdom.