Could the 'formulas' dying and rising with Christ be expressions of Pauline mysticism?

As to whether the above-mentioned formulas are expressions of Pauline mysticism depends on the one hand on what can possibly be regarded as the religio-historical background of the concept, and on the other, on the results of an exegesis of the relevant passages in the letters of Paul. As far as the former is concerned, it remains difficult to locate a specific background. Regarding the latter, Rm 6:1-11 is without a doubt the most well-known and prominent passage to take note of, while the idea of dying and rising with Christ is also present in 2 Cor 4:10-11; 5:14-15; Gl 2:19-20; 6:14,17; and Phlp 3:10-11. The key to answering our question is to be found in Rm 6:3 where baptism is referred to as είς Χριστόν Ίησοῡν (see also Gl 2:27), which is then qualified at the same time as a baptism είς τòν θάνατον αύτοῡ. From this it is to be concluded that Paul was thinking of the event(s) of dying and rising with Christ as the result of the believer's becoming one with Christ (or ἐν Χριστῳ̑) through baptism. If it is to be assumed that Paul's ἑν Χριστῳ̑ formula denotes some mystical union between Christ and the believer, which in all probability is the case, it seems that the formulas dying and rising with Christ are not, as such, expressions of Pauline mysticism but rather expressions of the consequence of this 'mystical' union.