'Twas the weekend before Christmas, in labs far and near, Where histologists gathered, their slides held so dear. The tissues were stained with precision and care, In hopes that new insights soon would be there. Microscopes whispered of secrets untold, In the patterns of cells, both steadfast and bold. Muscle and marrow, so artfully stained, In crimson and azure, their stories explained. The nucleus shimmered with secrets so dim, Chromatin swirling at each gentle whim. The histo world bustled in fluorescent light, As antibodies danced in the deep velvet night. 'Twas a weekend of wonders, a molecular delight, Where science and art intertwined in pure sight. A prelude to Christmas in each vibrant cell, A poetic tableau where discoveries dwell.