A bold and extensive abstract tattoo design for the forearm, featuring a cosmic time theme with thick lines and filling elements. The design includes large, concentric circles and spirals that represent the infinite passage of time, covering a significant portion of the forearm. Geometric patterns such as triangles, hexagons, and stars are integrated, branching off from a central timeline with bold, solid lines and smooth fades to create depth. An abstract sun and moon are incorporated, with thick, flowing lines and shading that blend into the surrounding design. A powerful cosmic wave flows through the entire composition, filling the space with dynamic shapes and fading elements that cover the forearm fully. The style is dense and detailed, with strong, solid lines, heavy shading, and smooth transitions, using black and grey ink.