The formations of cosmic structures involve both outflow of hotter gases from the centre, and inflow of cooler gases towards the centre. The mechanism of formation of the cosmic bodies is driven by the return of the outflowing gases, as inflowing material, which feed the fuel supply at the centre. Thus, what goes out, returns. By this mechanism, the cosmic bodies self-feed themselves in the process of their formations, and evolutions. The inflowing, and outflowing streams weave a unique fractal pattern, which embeds similar pattern, in scales after scales. The cosmic fractal design, repeats in the formation of clusters, larger than the galaxies, as well as in much smaller clusters. like the star clusters. Interestingly, the fractal pattern resembles knots, which one finds depicted in the Celtic mysticism. The cosmic bodies, in the early stage of formation, appears as a loose knot. As the cosmic structures evolve, the knot becomes tighter and tighter, i.e. more and more compact. Thus, in the case of galaxies, the barred spiral, which appears as a loose knot, becomes a spiral, and then an elliptical galaxy, as the same fractal knot becomres tighter, and tighter with increasing age.

The ejections from the nuclei occur along the major axis of the elongated shape, and in the direction perpendicular to it. The pattern is woven in such a way, that most gases appear as rotating wheel. The non-rotational radial motions occur in the directions, along which the ejections from the centre take place. In the directions of the ejected streams the hotter gases meet the incoming flows. These meetings generate dwarf structures, which break apart, and leave the mother body in two perpendicular directions. Thus many dwarf galaxies are created around a large cosmic body.

In very deep inside the nucleus, the fractal knot turns into a three-dimensional compact structure, resembling the shape of stars. In the way of turning into a star-like shape, in the deepest centre, the bar structure breaks from the ends, creating smaller bodies ejected from the nucleus.