The article discusses the origin of visible mass in the universe, emphasizing the role of strong interactions (QCD) and the emergence of hadron mass (EHM). While the Higgs boson contributes only about 1-2% of visible mass, the remaining 98% is attributed to EHM, which arises from dynamical chiral symmetry breaking (DCSB) in QCD. Pseudoscalar mesons, such as pions and kaons, are Nambu-Goldstone bosons that emerge from DCSB and play a crucial role in understanding the structure of hadrons. The study of these mesons provides insights into the interplay between EHM and the Higgs mechanism in generating mass. The article highlights the use of continuum Schwinger function methods (CSMs) to analyze pseudoscalar meson distribution amplitudes, form factors, and generalized parton distributions. These methods allow for the calculation of hadron properties and the exploration of the underlying dynamics of QCD. The results show that EHM dominates the mass generation in pseudoscalar mesons, while the Higgs mechanism contributes a smaller fraction. The article also discusses the implications of these findings for understanding the structure of hadrons and the role of strong interactions in the universe.The article discusses the origin of visible mass in the universe, emphasizing the role of strong interactions (QCD) and the emergence of hadron mass (EHM). While the Higgs boson contributes only about 1-2% of visible mass, the remaining 98% is attributed to EHM, which arises from dynamical chiral symmetry breaking (DCSB) in QCD. Pseudoscalar mesons, such as pions and kaons, are Nambu-Goldstone bosons that emerge from DCSB and play a crucial role in understanding the structure of hadrons. The study of these mesons provides insights into the interplay between EHM and the Higgs mechanism in generating mass. The article highlights the use of continuum Schwinger function methods (CSMs) to analyze pseudoscalar meson distribution amplitudes, form factors, and generalized parton distributions. These methods allow for the calculation of hadron properties and the exploration of the underlying dynamics of QCD. The results show that EHM dominates the mass generation in pseudoscalar mesons, while the Higgs mechanism contributes a smaller fraction. The article also discusses the implications of these findings for understanding the structure of hadrons and the role of strong interactions in the universe.