The ankh symbol takes this a step further proclaims that DUALITY (the masculine /feminine or positive/negative force) has been overcome by NEUTRALITY. The neutrality is the neutral place within the spinal column. The zipped-up element in the spine which spirals us to our reunion with our creator. We are no longer thinking of ourselves as male or female, but an aspect of ALL THAT IS. We have become a part of everyone and everything, no longer seeing anything as residing outside of ourselves. This powerful neutrality is the power of the universe, the expansive and creative particles of an implosive reunion with GOD.
The ankh symbol, in fact, literally combines the two forces within the symbol itself, namely the cross being the male element and the oval being the feminine element (early Egyptian knowledge). These two symbols, the cross and oval, were said to be the two generative principles of heaven and earth and, of course, the Egyptian deities of Osiris and Isis.
In Egyptian paintings, you find many figures carrying the ankh by the open end. This is a trigger to all of us to realize that it is a TOOL or a KEY which was an important part of early Egyptian spirituality. The ankh is a NEUTRAL KEY to unlock the door to the spirit world.
In the symbol for heart, the pyramid below which looks like two feet and which represents the DUALITY of this world, rises above the VEIL and penetrates to the center of the circle for an experience of GOD-REALIZATION.
Now to help you understand the underlying spirituality of other , The symbol for infinity in Egyptian hieroglyphics was the shen, which is a circle on top of a line, or the top one-half of the heart symbol. You have then dropped everything earthly and have traversed to the infinite universe for either a permanent or temporary experience.
Anatomy was a sacred knowledge to the early Egyptians. Some of this sacred knowledge, in the form of hieroglyphics, will be discussed here. The heart was the source of all life, the seat of the BA (heart-soul) and the KA (soul). The DJED was thought to represent a man's or Osiris' backbone (spine). The DJED pillar was considered necessary for transformation from human flesh to spirit. The TET was also said to represent the spinal column. In older hieroglyphics, there was a glyph which represented the bottom sacrum, just like that seen in the Great Pyramid article at this site. This glyph had the four vertebral elements on either side, just like the four vertebra that we know comprise the sacrum.
Another glyph, the NEFER, or the word for good, beautiful or happy, is a representation of the heart and windpipe. The glyph of a ladder was said to represent the ladder by which Osiris ascended to heaven (like Jacob's ladder in the bible). The early Egyptians were taught that in order for this Osiris ladder to perform, it was necessary to recite the WORD OF POWER.
Of course, one cannot forget the anatomy of the EYE, the UTCHAT. The two UTCHATS facing each other represented the two eyes of HORUS or the sun and the moon. Now if you take this to its obvious conclusion, the sun is the MALE ENERGY and the moon is the FEMALE ENERGY, you have the power of this world and all others.
Source: language of light.com
