My interpretation of this card, as the significator of the body complex, is that the upside down figure represents the very nature of the physical world, and/or life in the body. It is the opposite of mind -- the inversion of mind or time/space (space/time). The hanging upside down perspective is completely inverted to the mind, offering a wholly new perspective on the universe at large, offering a reflection, in opposites, to the perspective of the mind.
The left foot is tied to the supporting platform, which is indicative of the fact that life in the physical world is supported, naturally, by the left hand (or foot haha) perspective, which is predominantly an outer oriented perspective. The body, by its very nature, is oriented toward the realm of its domain: the physical world, the tangible world, the sensual world. The right foot, while free to move in either direction, is pointing to the left. The basic reason why is that the nature of the body is such that the orientation will naturally lean toward the STS perspective, a more or less innocent orientation toward the "natural man" since the negative centers are the lower energy centers and are naturally oriented toward the negative of mind: matter. The main domain of expression, and achievement, of the left hand path, is the physical world. STS entities are predominantly oriented toward the development and aggrandizement in the physical outer world, and STO entities are predominantly oriented toward, or concerned with, the development and disciplines of the personality in the inner world, the world of consciousness. One tends to place value in material things, the other tends to place value in mental things.
Once again, we see the perspective of the figure looking to the left, which is yet another repetition of the natural perspective offered by the physical body. The head is free to turn towards the right, but the natural tendency of life in the body is for the attention to be caught transfixed toward the outer/lower poles of experience. That is to say, toward material aggrandizement.
The hands being tied is meant to represent or symbolize the fact that life in the body is bound to certain simple ranges of physical movement and expression. Physical limitations are a fact of life in the body, and movement is more or less restricted to the parameters of the physical body one incarnates into. But even in situation of stricture and limitation, the seeds of growth may be sewn, as is evidenced by the figure dropping plentiful seeds onto the ground below -- the physical fruits of his labors, which, with any luck, and in the course of time, will spring forth as bountiful trees of growth, and fruitful experiences.