Shape is devoid of any definite edges but is enclosed within other shapes
Next

I believe the better answer is the circle.

Explanation:

Symbolically speaking, the circle is considered as the supreme sign of perfection, union, and fullness. The circle is also synonymous with movement, expansion, and time. It also represents the sky, the firmament, and the cosmic order in astrology. It also represents the activity and cyclical movements of the planets represented in the horoscopes and in the Zodiac, around the Sun.